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@ARTICLE{GrossBarsnick:867595,
      author       = {Gross-Barsnick, Sonja-Michaela and Fang, Q. and Batfalsky,
                      P. and Niewolak, L. and Blum, Ludger and Quadakkers, W. J.},
      title        = {{P}ost‐test {C}haracterization of {M}etallic {M}aterials
                      and {A}djacent {C}omponents in an {SOFC} {S}tack {A}fter
                      34,000 h {O}peration at 700 °{C}},
      journal      = {Fuel cells},
      volume       = {19},
      number       = {1},
      issn         = {1615-6854},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2019-06216},
      pages        = {84 - 95},
      year         = {2019},
      abstract     = {The present paper describes the electrochemical results and
                      the post exposure microstructural characterization by means
                      of SEM/EDS of a four layer SOFC stack after 34,000 h
                      operation under load at 700 °C, showing low voltage
                      degradation rate less than $0.3\%$ per 1,000 h. Emphasis was
                      put on the behavior of the ferritic interconnect steel and
                      its interaction with glass sealants as well as contacting
                      and coating materials. The interconnect steel had formed
                      thin protective chromia scales. Gas distributing steel foils
                      of 200 µm showed in some locations breakaway type
                      oxidation. It was related to local overheating caused by
                      locally occurring combustion of a defective cell. The
                      interaction of the steel with the glass sealant showed good
                      adhesion. Interdiffusion at the joint between nickel contact
                      and steel interconnect at the anode side resulted in minor
                      oxide formation on the Ni wires and in austenite formation
                      in the steel without formation of σ‐FeCr formation at the
                      steel/austenite interface. The steel showed excellent
                      compatibility with the Manganese‐Cobalt‐Ferrite (MCF)
                      chromium retention coatings. Chromium enriched phases were
                      found near the interface between MCF coating and perovskite
                      contact layer. Excess glass sealing material interacted with
                      the contact layer without showing obvious detrimental
                      effects.},
      cin          = {IEK-2 / IEK-3 / ZEA-1 / IEK-14},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-2-20101013 / I:(DE-Juel1)IEK-3-20101013 /
                      I:(DE-Juel1)ZEA-1-20090406 / I:(DE-Juel1)IEK-14-20191129},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000458426600010},
      doi          = {10.1002/fuce.201800050},
      url          = {https://juser.fz-juelich.de/record/867595},
}